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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You may want to look at the vtkImagePlaneWidget class and its
SetPlaneOrientation function. Using this function you could set the plane’s
normal to x, y or z axis (0, 1 and 2 respectively).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Beau <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'>From:</span></b><span
style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'>
vtkusers-bounces+beau.sapach=ualberta.ca@vtk.org
[mailto:vtkusers-bounces+beau.sapach=ualberta.ca@vtk.org] <b>On Behalf Of </b>Anja
Ende<br>
<b>Sent:</b> Monday, August 21, 2006 10:36 AM<br>
<b>To:</b> vtkusers<br>
<b>Subject:</b> [vtkusers] orthogonal slices through a volume<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi everyone,<br>
<br>
I know this question has been asked before but I could not find an answer that
could have helped me, so I am asking again.<br>
<br>
Well... I am trying to get the classic 3 orthogonal slices through a volume. I
know the vtkImageViewer2 provides this functionality but I cannot use that
component unfortunately. <br>
<br>
I was trying to use the vtkImageReslicer to get the XZ plane through the
volume. <br>
<br>
So, I tried setting up the matrix as follows:<br>
<br>
vtkImageReslice * slicer = vtkImageReslice::New();<br>
slicer->SetInput(imageChangeInformationP->GetOutput()); <br>
slicer->SetResliceAxesDirectionCosines(1, 0, 0, 0, 0, 1, 0, -1, 0);<br>
<br>
Is this matrix correct if I want to get the XZ plane out of the volume? I ask
because some of the slices in the beginning and end seem bogus. The
vtkImageViewer2 does not show them when I set the orientation to XZ in the vtk
viewer. <br>
<br>
Also, I noticed that the vtkImageViewer2 displays the volume nicely with
correct aspect ratio and all that... So, I tried using:<br>
<br>
slicer->SetOutputSpacing(1.0, 1.0, 1.0);<br>
<br>
This was shown in the example. However, this changes my extents and the number
of Z slices reduces. <br>
<br>
I was wondering if someone can help me determine the correct matrix for
extracting these planes.<br>
<br>
Thanks,<br>
<br>
Anja <o:p></o:p></p>
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